Remote-control electric switch.



J. R GUNN.

REMOTE CONTROL ELECTRIC SWITCH.

APPLICATION FILED MAR, 28, 1912.

1,054,917, Patented Mar. 4, 1913.

\VITNESSES UNITED stratus PATENT OFFICE.

JOHN El-TUNE, F DETROIT, MICHIGQLN.

entrees-connect ELECTRIC SWITCH.

To all whom it may concern Be it ltnown that I, Jenn B. Gums, a citizenofthe United States, residingat Detroit, county of Wayne, State ofMichigan, have invented a certain new and useful 1111-. movement inRemote-Control Electric Switches, and declare the following to be a fulhclear, and exact description of the same, such as will enable othersskilled in the art to which it pertains to make and use the same,reference being had to the ac companying drawings, which form a partofthis specification.

This invention relates to remote control electric switches and has forits object such a switch of difi'erent construction and mode ofoperation from the devices of: the prior art and which is capable oibeing constructed at less cost. Its operation is by mag netic attractionand gravity alone" In the drawingsz-Figure 1, is the front elevation ofthe switch. Fig. 2, is a vertical section of the switch partly inelevation. Fig. 3, is a side elevation of the switch on a similar scale,showing the connectors dropped out of contact with the terminals. Fig.4: is a frontelevation of the switch in the same position, as in Fig. 3.Fig. 5, is a detail of the connector.

Each of the wires coming into a house or building is broken formingterminals 1 and 2 that are mounted on an insulating bed sucli fastenedto the insulating bed A and is provided with a hollow core 8 and a Swissiron armor e. In between the core 3 and the armor i are the necessaryinsulating windings 5. The core and the iron armor are an important partof my invention as these permeable substances serve to collect themagnetic flux and concentrate it so as to make the s lenoid. or suckingmagnet very m l r ore efiicient with a given current 5. otherwise be thecase. By the term of construction ente this magnet with a pair of atotal voltage of 3 and an of about 2G High tension opcte controlswitches liable to u if something goes wrong with enl hence areinterdicted by The plunger rod 6 is recip L118 hollow core 3 and carriesa cross head of insulating material 1' upon mounted the two connect 8.

which These c v n. I. with contact Specification of Letters Patent.

Application filed March 28, 1912.

a slate slab A. The solenoid B is- Patented Man-1,1913.

Serial No. 635,727.

g springs 9 for a purpose hereinafter to be described. The conductor 10leads from one end of the winding 5 about the core to the binding post11 and from thence to a push button switch C where a push button 12 mayclose the circuit through the battery 13 to the binding post 1 1, fromthence through the conductor 15 to the lower end of the coil.

Arranged just below the solenoid B is a magnet D provided with asoftiron core 16, windings 17 and armor 18. This magnet D is providedwith a circular catch 18 that is hinged thereto. The coil is energizedthrough the conductor 19 which leads from the common binding post 11 andthe conductor 20 that leads from the other'end of the coil to thebinding post 21 and thence to the push button switch (3 where it iscontrolled by the push button 22.

The operation of the device is as follows i' The push button 12 ispressed, thereby establishing a circuit through the battery 13, theconductor leading therefrom, the binding post 1 1. the conductor 15through the coil about the plunger 6, out the other end of the coil, bythe conductor 10 to the binding post 11 back to the push button switch.This serves to energize the solenoid B which sucks the plunger rod 6 upso that the spring contacts bridge the terminals 1 and 3. The magneticin the solenoid, while it is energized also serves to open out thecircular catch 18 of the magnet D so that it lies directly in the pathof the plunger rod 6. When the push button 12 is released, the plungerrod 6 starts to drop, (the switch being vertically disposed) but iscaught by the catch 18 so that it does not drop far enough to allow thespring contacts 9 to leave contact with the terminals. These springcontacts 9 by reason or their resiliency contact the terminals althoughhe connections drop slightly before the cat-ch engages with the plunger,The circuit is new eli ectually closed. until it is again de- Theopening is eccent- V a g the push button of the. C. This establishes acircuit throngs the battery 13 the conductor leading therefrom he post3-, the conductor 1% lead; ,9: to winding 17 of the magnet l) out theother end of the winding through the conductor 28 to the binding post 21and thence back to the push button switch (3. m serves to energize Illsisl. 1. as" magnet vent-ct attracts the catch 18..

The plungler rod then drops by gravity, breaking t e contact with theterminals and opening the main circuit.

From the above description, it will be seen' that my device is readilyand cheaply constructed and it does not require a constant flow ofcurrent in order to keep it in closed or open relation and that it is sodesigned that a few dry batteries will efi'ectually operate it. Anotherimportant feature is the fact that it operates entirely by mag neticattraction and gravity, doing away with all s rings or other mechanicaldevices What claim is I A remote control electrio'switch, having incombination, a vertically disposed solenoid, a pair of terminals locatedthereabove, a vertically'reciprocating plunger rod adapt ed to be drawnupward by energizin said solenoid, a connector carried by said p ungerrod and adapted, when the plunger rod is drawn upward, to contact theterminals and close the circuit therethrough, a magnet located justbelow said solenoid and provided with a hinging catch, said catch, whenthe solenoid is energized, being adapted to be drawnoutward under theplunger rod by the magnetic flux of the solenoid and thereby hold theplunger rod so as to kee the connector in contact with the termina s andthe said magnet being adapted, when it is ener-v plunger rod drops bygravity and breaks the connection between the connector and theterminals.

In testimony whereof, I' sign this specification in the presence of twowitnesses.

JOHN R. GUNN. Witnesses:

STUART C. BARNES, VIRGINIA C. SPRA'I'I.

